Model: 4B870

Spur Gear

Properties:

Body Style
Webbed, offset, with lightening holes
Pitch Diameter
5.3333 inches
Teeth Quantity
32
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
5.581 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.345 inches second end
Distance Between Body Face And Recessed Hub End
0.207 inches first end
Face Width
0.548 inches
Bore Diameter
0.749 inches both ends
Keyway Width
0.127 inches both ends
Distance From Bore Center To Keyway Bottom
0.441 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
0.656 inches second end
Hub Diameter
1.875 inches first end
Material
Aluminum alloy
Material Specification
Sae 380 assn standard single material response
Style Designator
Cone shape body, protruding hub, recessed hub
NSN
3020-00-371-3433
Part Number
4B870
Description
Gear,spur
CAGE
11083

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 4B870 NSN 3020-00-371-3433

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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